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AlekseyPX
3 years ago
9

What are Kr and Xe. (elements)?

Chemistry
1 answer:
nasty-shy [4]3 years ago
8 0
The elements are Krypton and Xenon
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What is the concentration (in M) of a sample of the unknown dye with an absorbance of 0.25 at 542 nm?
Sladkaya [172]

Answer:

see explanation below

Explanation:

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Now, in general terms, the absorbance of a substance can be calculated using the beer's law which is the following:

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the equation according to the plot is:

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I have a 4 amino acid peptide of unknown sequence with a curious titration profile around pH = 6. If Iknow that the peptide N-te
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